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» UniSafe MV Withdrawable




UniSafe MV Withdrawable, Arc-proof, Air-insulated, Metal-clad Switchgears

 

UniSafe is a medium voltage, metal-clad switchboard suitable for indoor applications. It is a modular apparatus made of aligned standard units. Metal sheets segregate each compartment and the energized components are air insulated. The installation requires very simple civil works. The switchboard can be wall-mounted. The power cables branch connectors are accessible from the front. UniSafe switchboard can be equipped with both SF6 HD4 and vacuum VD4 withdrawable circuit breakers. The circuit breakers are fitted with a truck for the racking in and out with closed door. The light and compact structure of both types guarantees sturdiness and high mechanical reliability. The stored energy, free-release mechanical operating mechanism allows opening and closing without the operator’s intervention. The operating mechanism and the poles are fixed to the metal structure, which acts also as a support for the kinematics automation of the moving contacts.

The typical units of the UniSafe switchboard consist of up to a maximum of seven compartments segregated from each other by means of metal partitions:

UniSafe characteristics

·     Metal-clad air-insulated switchboard

· Designed for medium voltage distribution

·  Factory-tested for indoor installations

 Arc-proof switchboards

·  Earthed metallic partitions between compartments

·  Mechanical safety interlocks

·   Compartments made of pre-galvanized sheets

·   Front access for installation, maintenance and routine

       operations

·  Complete set of apparatus: gas and vacuum circuit

       breakers, contactors and switch disconnectors

· Conventional instrument transformers

·       Wide range of functional units for any installation

       requirement

·       Easy-to-assemble modular structure.

 

 

 

 

1 Main busbars

2 Feeder

3 Circuit breaker

4 Instruments

5 Auxiliary circuit wiring duct

6 Withdrawable voltage transformers

   (on request)

7 Gas duct.

The UniSafe Standard version switchboard features the

 Following degrees of protection:

Degree of protection with open doors                 IP2X

 

Degree of protection on the external enclosure: IP4X